64145026635 has 16 divisors (see below), whose sum is σ = 104037962784. Its totient is φ = 33742040832.

The previous prime is 64145026567. The next prime is 64145026657. The reversal of 64145026635 is 53662054146.

It is not a de Polignac number, because 64145026635 - 2¹⁹ = 64144502347 is a prime.

It is a super-2 number, since 2×64145026635² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29288872 + ... + 29291061.

It is an arithmetic number, because the mean of its divisors is an integer number (6502372674).

Almost surely, 2^64145026635 is an apocalyptic number.

64145026635 is a deficient number, since it is larger than the sum of its proper divisors (39892936149).

64145026635 is a wasteful number, since it uses less digits than its factorization.

64145026635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58580014.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 64145026635 in words is "sixty-four billion, one hundred forty-five million, twenty-six thousand, six hundred thirty-five".